Have this Kenmore refrigerator model no 253.53322300 that the compressor keeps cutting off.I checked the start relay overload assy and it rattled as I shook it,so I replaced it with a new one.The compressor comes on and will run for about one minuet and cut off for a few minuets and then comes back on,and off.I checked the compressor and it ohms out good and is not grounded.What do you guys think is wrong here,and what else should I check?